20683975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2053}}^1$

素因数の和:2107

約数の個数: 24

約数和(自身を含む): 28525952

約数和(自身を除く): 7841977

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 2015, 2053, 10075, 10265, 26689, 51325, 63643, 133445, 318215, 667225, 827359, 1591075, 4136795, 20683975]

約数ペア:

[(1, 20683975), (5, 4136795), (13, 1591075), (25, 827359), (31, 667225), (65, 318215), (155, 133445), (325, 63643), (403, 51325), (775, 26689), (2015, 10265), (2053, 10075)]